3) Aristides Aquino has four years of control and the Mets could use all of them.
Aquino’s best season was 2019, when he hit 19 homers and slugged .576 in 56 games as a rookie. This year, he hit 10 homers and six doubles, with a slugging percentage of .408. He only appeared in 84 games.
He is primarily a right fielder, and he has the throwing arm to stay there. While he doesn't have great range, he has played center and left field a little bit over the last couple of years, so he could play there in a pinch.
The Reds have so many outfielders that Aquino has had a hard time finding playing time, so the Reds could benefit by moving one of them. Even with Nick Castellanos opting out of his contract and testing the free agent market, the Reds still have Jesse Winker, Shoho Akiyama, Nick Senzel, and Tyler Naquin.
Since Aquino seems to have drawn the short straw on playing time, he seems like the most logical to be on the move this winter. With four years of control left, he could be a long-term replacement for Michael Conforto.